// /*
// * Copyright 2009-2021 Alibaba Cloud All rights reserved.
// *
// * Licensed under the Apache License, Version 2.0 (the "License");
// * you may not use this file except in compliance with the License.
// * You may obtain a copy of the License at
// *
// *      http://www.apache.org/licenses/LICENSE-2.0
// *
// * Unless required by applicable law or agreed to in writing, software
// * distributed under the License is distributed on an "AS IS" BASIS,
// * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// * See the License for the specific language governing permissions and
// * limitations under the License.
// *

#import <Foundation/Foundation.h>
#import <PDS_SDK/PDSInternalTask.h>

@class PDSDownloadUrlRequest;
@class PDSFileSubSection;
@class PDSSessionDelegate;

typedef void (^PDSInternalParallelSubDownloadTaskProgressBlock)(int64_t bytesWritten, int64_t totalBytesWritten, int64_t totalBytesExpectedToWrite,NSUInteger subDownloadTaskIdentifier);

@interface PDSInternalParallelSubDownloadTask : NSObject <PDSInternalTask>
@property(nonatomic, readonly) PDSFileSubSection *fileSection;
@property(nonatomic, assign) NSUInteger identifier;//内部下载任务的ID

- (instancetype)initWithRequest:(PDSDownloadUrlRequest *)request downloadFileSection:(PDSFileSubSection *)downloadFileSection session:(NSURLSession *)session sessionDelegate:(PDSSessionDelegate *)sessionDelegate;

- (void)setProgressBlock:(PDSInternalParallelSubDownloadTaskProgressBlock)progressBlock;

- (void)setProgressBlock:(PDSInternalParallelSubDownloadTaskProgressBlock)progressBlock queue:(NSOperationQueue *)queue;
@end